#MASS STORAGE CONTROLLER STANDARD NVM EXPRESS CONTROLLER DRIVER#
With the standardized software interface, the operating system requires only a single driver to communicate with all SSD devices that conform to the NVMe specification. In one approach, an extended NVMe controller enables a CPU to access. While ACHI can only support a maximum queue depth of 1 with 32 commands each, NVMe can support up to 64K queues with 64K commands each, thus breaking through the previous performance bottleneck of transmission bandwidth and speed.Įarly SSDs were connected through a PCIe bus, but required a customized software interface for communication with the operating system. A relatively new interface standard that deals with local non-volatile memory. On the Security tab, click the Trusted Sites icon. The formal name of NVMe is the Non-Volatile Memory Host Controller Interface. Therefore, NVMe was developed using a PCIe (Peripheral Component Interconnect Express) hardware interface. In Internet Explorer, click Tools, and then click Internet Options. NVMe is a type of software interface used for solid state drives (SSD). The adoption of SSD resulted however in a performance bottleneck since the maximum transmission bandwidth of ACHI could not handle the transmission speeds possible for SSD devices. Intel had previously developed ACHI for traditional high-latency spinning hard disks, but by 2009 SSDs were rapidly gaining popularity as a storage medium.
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